Hand-threading shuttle.



R. PACKER.

HAND THREADING SHUTTLE. APPLICATION FILED JAN. 2.1913.

1,156,034. Patented Oct. 5 ,1915.

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W M MWW 7 vertical transverse section taken through the RICHARD PACKER,or FALL RIVER, MASSACHUSETTS, ASSIGNOB T0 JAMES K.

' LANNING, or FALL RIVER, AssAoHUsET'rs.

HAND-THREADING SHUTTLE.

Application filed January 2, 1913.

Z70 all whom it may. concern Be it known that I, RICHARD PAOKER, acitizen of the United States, and a resident of Fall River, in thecounty of Bristol and State of Massachusetts, have invented anImprovement in Hand-Threading Shuttles, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like characters on the drawings representing like parts.

This invention relates to hand threading shuttles, primarily, thepurpose thereof being to produce a shuttle that may be easily threadedby hand, and from the threading aperture of which the thread cannot beaccidentally displaced.

In order that the principle of the invention may be readily understood,I have disclosed a single embodiment thereof in the accompanyingdrawings, wherein Figure 1 is a plan view of the forward portion of aloom shuttle embodying my invention, a portion thereof being shown intransverse section; Fig. 2 is a side elevation of the structure shown inF ig. 1; Fig. 3 is a shuttle upon the line 33 of Fig. 1; Fig. at is afront elevation of the threading member; Fig. 5 is a side elevationthereof, the member being slightly tilted; and Fig. .6 is a transversesection thereof on an enlarged scale.

The invention, in certain aspects thereof, may be applied to shuttlesnot of the hand threading type.

Referring to the drawing, the body of the shuttle is represented at 1,it being of any usual or suitable character, shape and material. Mountedtherein in any suitable manner is a Weft carrier, here shown as a bobbin2, which may be mounted on the usual spindle, not shown. Upon the bobbinis positioned the usual weft package 3. Axially in advance of the bobbinis the usual recess 4 which leads to the transverse socket 5, whereinthe threading member is adapted to be positioned. The said transversesocket penetrates from the side surface of the shuttle transversely to apoint of-intersection with the recess 4:. The shuttle body 1 is suitablyslitted in order to permit the thread to be passed manually into andthrough the socket 5, thus avoiding the sucking of the thread through bythe op- Specification of Letters Patent.

Patented Oct. 5, 1915. Serial No. 739,832.

erative. For this purpose, I have repre.

sented an arcuate slot 6 cut or otherwise suitably formed in the topsurface of the shuttle and a longitudinal slot 7 communi eating with theslotGin the usual or any desired manner. The arcuate slot 6 communicatesat its inner end with the recess L at the front thereof preferably onthe side the more remote from the side of the shuttle through which thethread 8 issues.

The parts thus far described may be of any suitable construction.lVithin the transverse socket 5 is positioned a threading member which,in this embodiment of the invention, is shown as a plate 9 preferably ofsoft steel. This plate is adapted to be secured within the socket 5 by ascrew or other holding means penetrating thetop of the shuttle abovesaid socket. To this end, thesaid plate may be provided with a suitablehole for the reception of thescrew or the plate may be fitted tightlyinto position in the socket and held there by friction,- but.

in such a manner as to permit it to be withdrawn when desired. Thethreading mem}.

constructed thatit imparts the desired fric tion to the thread in theweaving operation in both directions of throw of the shuttle.Furthermore the construction of said threading member is such that thethread is at all times positively held in proper, predeterminedposition, not only so that the shuttle cannot be unthreaded, but so thatthe thread is held in that position where the required tension isnecessarily applied thereto.

The plate 9, as shown most clearly in Figs. 2 to G inclusive, isprovided with a projecting prong 10 preferably integral therewith andreversely bent into general loop form, the end 11 thereof extending intoclose proximity to or into asooket or recess 12 formed in the plate. Theprong lo'is preferably located close to or, at that side of the platewhich is nearest the side 'wall 12 of the shuttle. Inasmuch as the plateis to vary the shape thereof orthe position of the extremity ll of theprong as ,desired.

Adjacentits opposite extremity the plate,

9 is provided with an'eye 13 which is axially inline with thefispinldleon which the bobbin 2 is mounted,so that the thread 8 is deliveredaXiallv of the bobbin into said eye 13. To permit the proper threadingof the shuttie, the eye 13 is provided with a flaring or other openinglet, and if desired the upper surface of the plate may be slightlyrecessed in the rear of the eye 13 for the thread 8.

The thread receives friction as it passes along the upper surface of theplate to the eye 13. It will be observed that one wall of the openinglet is bent upwardly. This insures the passage of the thread below thatpart of the plate which is between the eye 13 and the adjacent prong andguides the thread into its proper position with respect to the saidprong. This purpose is readily accomplished by slightly twisting thatportion of the metal which is between the opening 14 and the said prong.

Between the eye 13 and the looped prong 10, there is provided a secondprong 15 preferably struck down from the body of the plate 9, asindicated most clearly in Fig. 1. This prong 15 is preferably curvedrearwardly, as represented, so as to provide a slightly concaved,localized, guiding portion 16 for the thread. Inasmuch as the plate ismade of soft steel, it is possible to bend the prong 15 so as to bringit in correct position with reference to the portion 17 of the prong 10to impart the desired tension to the thread, and hence to vary theposition of the prong 15, depending upon the character of thread and theamount of tension required thereby, it being the purpose of theconstruction to provide a somewhat circuitous route for'the thread aboutthe two prongs 15, 10, so that friction is applied to the thread both bythe prong 15 and by the prong 10. If desired, the prong 15 may bestructurally distinct from the plate 9 and applied thereto in anadjustable manner, so as to permit it to be positively adjusted in andout with respect to the front prong 10, thereby to secure the properfriction, and to vary the friction with the character of the thread. ItWill be observed that in the construction shown the prong 15 issubstantially in transverse alinement with the portion 17 of the prong10, thus compelling the thread to take a circuitous route to the frontof the prong 15 and to the rear of the part 17 of the pron 10. v

The thread 8 is drawn into the arcuate slot 6 down into the slot 7 andis then drawn past the extremity 11 of the prong 10 or to the leftthereof viewing Figs. 2 and 6. The relation of the extremity 11 of theprong 10 to the socket or recess 12 is such that the thread is in thethreading operation passed up into the socket or recess 12 about thepoint 11 and thence down into the looped portion of the prong 10. Theconstruction is such that it is impossible to reverse the operation anddethread the shuttle by passing the thread up past the point 11 into therecess 12, and thence to the right, viewing Fig. 6.

When the shuttle is moving toward the right, viewing Figs. 1 and 2, thethread receives friction against the front face of the prong 15 and alsoagainst the inner face of the member 17 of the prong 10, thus impartingthe desired friction, and when the shuttle is moving in the oppositedirection or to the left viewing Figs. 1 and 2, the thread receivesfriction against the outer face of the prong 15 and against the oppositemember of the prong 10.

It will be observed that the curved formation of the prong 15 and of themember 1? of the prong 10 are such that the thread is fixedly held fromvertical movement along these prongs and hence cannot be moved upwardlytoward the end 11 of the looped prong 10. The spacing apart of theprongs 10 and 15 is important, for if they were continuous there wouldbe but little friction imparted to the thread which would slide freelyalong them, but by providing the separated rongs or projections asdescribed, there is suflicient friction imparted to pre vent the toofree playing off of the thread from the shuttle.

Obviously the entire structure can be stamped from a single piece ofmetal and bent into shape at a single operation and at exceedinglyslight cost.

The construction is such as absolutely to prevent the dethreading of theshuttle, while at the same time sufficient friction is imparted to thethread whatever the direction of motion of the shuttle.

Having thus described one illustrative embodiment of my invention, Idesire it to be understood that although specific terms are employed,they are used in a generic and descriptive sense and not for purposes oflimitation, the scope of the invention being 'set forth in the followingclaims.

1. A hand threading shuttle provided with a transverse threading socket,a threading member positioned therein and consisting of a plate portionhaving an eye 13 and a plurality of prongs extending from one facethereof in substantial transverse alinement with said eye, one of saidprongs being bent into loop form and surrounding the thread, and anotherof said prongs being positioned so as frictionally to engage the threadpassing through said loop.

- 2. Ahand threading shuttle provided with a transverse threadingsocket, a threading member positioned therein and consisting of a plateportion having an eye leading to the under face thereof and a pluralityof prongs extending from said under face thereof and in substantialtransverse alinement, one of said prongs being bent into loop form andsurrounding the thread, and another of said prongs extending insubstantial parallelism to a portion of said looped prong.

3. A hand threading shuttle provided with a transverse threading socket,a threading plate positioned therein and having spaced prongs, one ofwhich is bent into looped form, and having an eye extending through theplate for the passage of the thread directly to said prongs, the latterbe ing relatively positioned to compel friction of the thread againstboth prongs in either direction of throw of the shuttle.

4. A threading member for a hand threading or other shuttle consistingof a plate adapted to be inserted in a threading socket of the shuttleand having a plurality of spaced prongs extending from one face thereof,one of said prongs being reversely bent into loop form, a plurality ofsaid prongs being oppositely concaved to provide a limited path for thethread.

5. A hand threading shuttle provided with a transverse threading socket,a threading plate positioned therein and having downwardly extending,spaced projections oppositely curved to provide a localized,predetermined thread path, one of the prongs being bent into loop formand having an extremity extending into close pro-ximity to the undersurface of the plate, thereby to prevent dethreading.

6. A hand threading shuttle provided with a transverse threading socketand intersecting threading grooves, a metal threading plate positionedin said socket and having an eye and entering recess in axial alinementwith the axis of the bobbin and two downwardly extending, threadpositioning and tension creating prongs, one of said prongs being bentinto loop form, the two of said prongs being bent into loop form andsurrounding the thread adjacent the thread exit from the shuttle, andanother of said prongs being in substantial transverse alinement with aportion of said looped prong, but positioned to compel a so1newhatcircuitous route for the thread past said prongs, said plate portionhaving a guiding eye in longitudinal alinement with the axis of the weftpackage and extending through the plate from face to face thereof.

8. A hand threading shuttle provided with a transverse threading socket,a thread ing member positioned therein and consisting of a plate portionhaving an eye lead ing to the under face thereof and a plurality ofprongs extending from said under face and in substantially transversealinement, one of said prongs being bent into loop form and surroundingthe thread, and another of said prongs extending in substantialparallelism to a portion of said looped prong, said prongs beingpositioned to compel a somewhat circuitous route for the thread pastthem. i

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

RICHARD PACKER.

Witnesses: V

J OHN M. A. HENNESSY, NICHOLAS HATHEWAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

